Condensing- steam-engines which are used for pumping



, l: ST

A'INT FFICE.

BIRDSILL HOLLY, OF SENECA FALLS, NEW YORK.

CONDENSING STEAM-ENGINES WHICH ARE USED FOR PUIVIPING'.

To all 'whom it may concern.'

Be it known that I, BIRDsILL HOLLY, of Seneca Falls, in the county of Seneca and State of New York, have invented a new and useful Improvement in Condensing Steam-Engines to be used for Pumping; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawing, forming part of this specification, in which- Figure 1, is a vertical section of an engine constructed according to my invention; Fig. 2, a vertical section in the line m, x, of Fig. 1.

Similar letters of reference indicate corresponding parts in both figures.

This invention consists in 1leading the eduction pipe of a steam engine directly into the suction pipe of a common force or lift pump, whereby condensation is effected, and a partial vacuum produced without the cumbersome and expensive apparatus common to condensing engines.

The invention is particularly applicable to steam pumps.

In the engine represented in the accompanying drawing both the steam engine proper A, and the pump'B, are rotary and constructed according to the Letters Patent which were granted to me on the 6th day of February 1855, not that the invention is limited in its application to engines and pumps of this construction, or to rotary engines and pumps generally but that this affords a good illustration of the invention, and that a pump of this kind having no valves and being continuous in its action is particularly well adapted to the purpose and the entire engine can be very cheaply constructed. The engine and pump are geared together by spur wheels a, b, so that l the former may drive the latter at the desired relative speed. A

C, is the suction pipe of the pump and D, the discharge pipe.

E, is the induction steam pipe of the engine and F, the eduction pipe which enters some distance into the suction pipe C, and discharges the steam thereinto through a numberof small holes c, c, to bring it in contact with the water in thin jets or streams, that it may be quickly condensed.

By this mode of condensing the steam we havethe advantage of a vacuum condenser without eXtra expense; and it is obvious that the advantage of condensation in this way, will increase as the height of the column increases in the suction pipe and approaches to thirty three feet. It is also obvious that the difference between leading the exhaust pipes into the suction pipe and leading it into the delivery pipe of the pump would be the difference between eX- hausting into a vacuum and into a plenum.

l Therefore what I claim as my invention 1s Leading the eduction steam pipe of a steam engine into the suction pipe of a force or lift pump substantially as herein described whereby the condensation of the steam is effected and a partial vacuum produced without a separate condenser and air pump, and` this in engines employed wholl or in part to raise water, without any additional expenditure or loss of power to raise the water to el'ect condensation.

BIRD SILL HOLLY.

Witnesses vW'M. LANGWORTHY,

A, BALDWIN, 

